diff --git a/.github/workflows/cross-language-integration.yml b/.github/workflows/cross-language-integration.yml
index 9ba2a2d7b..78ef75d43 100644
--- a/.github/workflows/cross-language-integration.yml
+++ b/.github/workflows/cross-language-integration.yml
@@ -16,6 +16,8 @@ jobs:
 
       - name: Use Node.js
         uses: actions/setup-node@v6
+        with:
+          node-version: '24'
 
       - name: Setup Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/validation.yaml b/.github/workflows/validation.yaml
index 7bb00098e..acd54618c 100644
--- a/.github/workflows/validation.yaml
+++ b/.github/workflows/validation.yaml
@@ -15,13 +15,16 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: ['22', '24']
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Use Node.js
+      - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v6
+        with:
+          node-version: ${{ matrix.node-version }}
 
       - name: Setup Python
         uses: actions/setup-python@v5
diff --git a/README.md b/README.md
index 414eed3f5..7298d50ae 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,8 @@ web runtimes.
 
 ## 🚀 Installation
 
-> **Prerequisite:** ADK for TypeScript requires a current Node.js LTS release.
+> **Prerequisite:** ADK for TypeScript requires Node.js 22.13.0 or newer. CI
+> runs against the supported LTS lines, currently Node 22 and Node 24.
 
 ```bash
 npm install @google/adk
diff --git a/package.json b/package.json
index 36cc0d747..1747a469b 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,9 @@
     "dev",
     "integrations"
   ],
+  "engines": {
+    "node": ">=22.13.0"
+  },
   "devDependencies": {
     "@eslint/js": "^9.37.0",
     "@google/genai": "^2.9.0",